Rakdos Joins Up, Archon of Falling Stars, Ashnod's Altar, and Thaumatog

Prerequisites

• Rakdos Joins Up in hand
• Archon of Falling Stars in the graveyard
• Ashnod's Altar on the battlefield
• Thaumatog on the battlefield
• available

Steps

1. Cast Rakdos Joins Up by paying
2. When Rakdos Joins Up enters the battlefield, its first ability triggers
3. Holding priority, activate Thaumatog by sacrificing Rakdos Joins Up
4. Resolve the Rakdos Joins Up ability, returning Archon of Falling Stars from your graveyard to the battlefield with two +1/+1 counters on it
5. When Archon of Falling Stars enters the battlefield, it triggers
6. Holding priority, activate Ashnod's Altar by sacrificing Archon of Falling Stars
7. Resolve the Archon of Falling Stars ability, returning Rakdos Joins Up from your graveyard to the battlefield
8. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinitely large Thaumatog until end of turn